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The multivariate linear regression analysis on specific absorption coefficients for pheophytin and chlorophyll a indicates that the specific absorption coefficients for pheophytin was much larger than chlorophyll a at 412 nm; slightly larger than pheophytin at 440nm; and about 3 times larger than pheophytin at 670 nm and 675 nm.

结果表明，412nm波段脱镁叶绿素的比吸收系数远大于叶绿素a；440nm波段，叶绿素a的比吸收系数略大于脱镁叶绿素；670、675nm波段，叶绿素a的比吸收系数约为脱镁叶绿素的3倍。

So it is of much significance to study the mechanisms of ovule development and abortion of Chi- nese pine. By combining two-dimensional gel electro- phoresis (2-DE) and mass spectrometry analysis, the pat- terns of gene expression in a specific tissue at a specific stage can be displayed and characterized.

双向电泳和质谱技术结合研究基因表达的蛋白质组技术正越来越广泛地应用到植物研究中，我们将该技术应用到油松胚珠发育的研究中，比较了两种蛋白质提取的方法，发现蔗糖提取方法比传统的TCA 方法更适合于油松蛋白质的制备。

Many tumor specific antigens such as mouse PlA, human MAGE, BAGE and GAGE families had been isolated during recent decade. PlA is a tumor specific antigen expressed by mouse mastocytoma P815. It is one kind of cancer-testis antigens and expresses in various mouse tumor such as mastocytoma P815, plasmoma J558 and fibrosarcoma Meth A but hardly in normal tissue except testis and placenta.

近十年来已经成功分离出多种鼠或人的肿瘤特异性抗原，如小鼠P1A基因和人的MAGE、BAGE、GAGE家族等。P1A为小鼠肥大细胞瘤P815所表达的肿瘤特异性抗原，它是一种CT抗原，在多种小鼠肿瘤如肥大细胞瘤P815、浆细胞瘤J558和纤维肉瘤Meth A等中表达，而在除睾丸、胎盘之外的正常组织中不表达。

The generalized POBS refers to forbid the specific behavior which has competitiveness to the specific business,and refers to according to the legal rule or the litigant agrees an oblige side is authorized to request a volunteer side not to carry on a competition behavior aiming at him in certain deadline.

广义的竞业禁止，指对(来源：A7afaBC论文网www.abclunwen.com)于特定营业具有竞争性之特定行为加以禁止，是指根据法律规定或当事人约定，权利人一方有权要求义务人一方在一定期限内不得进行针对自己的竞争行为。

In conclusion, the non-specific immunity of Portunus trituberculatus was significantly affected by salinity low 14 and high 36 stress during 12 hours; PSVF2 has more immunity advantages in these non-specific immune factors than that of CPF1 under salinity stress.

总结：低盐和高盐胁迫对三疣梭子蟹的非特异性免疫影响显著且表现出时间效应；在正常和抗盐度胁迫下，筛选蟹F2比普通蟹F1在非特异性免疫因子方面更具免疫优势。

The reverse transcription-polymerase chain reaction was used to seek the expressions of a specific fibroblast marker, prolyl 4-hydroxylase β, and a specific marker of epithelial cells, cytokeratin-4, in the cells.

采用逆转录多聚酶链反应检测hEFs表达成纤维细胞特异性标志（脯氨酰4-羟化酶β亚单位）和上皮细胞特异性标志（细胞角蛋白4）的情况，对该细胞进行鉴定。

Pulse detonation engine is a new concept of propulsive engine which uses high temperature and pressure gas produced by intermittent or pulsant detonation wave to generate thrust. PDE has many desirable advantages, including high thermal dynamic cycle efficiency, low specific fuel consumption, high thrust/weight and specific impulse, simple configuration, and will become propulsive device of aviation and spaceflight aerocraft in 21st century.

脉冲爆震发动机是一种利用间歇式或脉冲式爆震波产生的高温、高压燃气来产生推力的新概念发动机，这种发动机具有循环热效率高、燃料消耗率低、推重比高、比冲大、结构简单等优点，将成为21世纪新型的航空航天飞行器的动力装置。

The comparisons of NO reduction efficiencies and specific NO reduction quantities under different conditions were made. The influences of oxygen, reburn fuel fraction and coal particle size on specific NO reduction quantity were analyzed.

对不同工况下NO还原效率与比脱硝量进行对比研究，分析O2浓度、再燃燃料比与煤粉细度对比脱硝量的影响规律。

The result show that high NO reduction efficiency does not absolutely mean high specific NO reduction quantity; decreased oxygen content and increase reburn fuel fraction lead to increase NO reduction efficiency but not absolutely increase specific NO reduction quantity.

实验与分析结果表明：NO还原效率高并不意味比脱硝量高；NO还原效率随O2浓度降低和再燃燃料比增加而单调增加，但比脱硝量变化规律相对复杂。

The alarm can be set to ring at a specific time within 24 hours, or recurrently at a specific time on several days.

您可以设定闹钟只在 2 4 小时内某个时间响铃，或设定周期闹钟在几天中特定的时间响铃。

The studies on the developing of new media are very important to the increasing of the area density of HDD and to the implementation of hybrid recoding technology.

光磁混合记录方法，是一种可以突破超顺磁极限的限制，并进一步提高硬盘记录密度和读写速率的一种新型超高密度信息存储方式。

In io, mTOR inhibition promotes T cell anergy under conditions that would normally induce priming.

体内研究中，在正常可激发免疫反应的条件下，抑制mTOR可促使T细胞无能。